let mongoose=require('mongoose');
mongoose.connect('mongodb+srv://2179522067:zhou1005@cluster0.wited.mongodb.net/?retryWrites=true&w=majority&appName=Cluster0/week1').then(()=>{
    console.log('connected to db')
})

let users=new mongoose.Schema({
    name:String,
})

let usersModel=mongoose.model('users',users,'users')

module.exports={usersModel};q